//BeanCipher - Bean Cipher Security Layer
//Copyright (C) 2005 Raul Alfredo Bajales
//
//This library is free software; you can redistribute it and/or
//modify it under the terms of the GNU Lesser General Public
//License as published by the Free Software Foundation; either
//version 2.1 of the License, or (at your option) any later version.
//
//This library is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//Lesser General Public License for more details.
//
//You should have received a copy of the GNU Lesser General Public
//License along with this library; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package ar.com.rab.beancipher.impl.configuration.validator;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import ar.com.rab.beancipher.impl.configuration.model.beanmapping.CFGBeanMapping;
import ar.com.rab.beancipher.impl.configuration.model.registry.CFGRegistry;
import ar.com.rab.beancipher.impl.configuration.validator.exceptions.ConfigurationValidatorException;

/**
 * Validates: 
 * Existence of referenced bean classes<br> 
 * Existence of referenced packages
 * Existence of referenced interfaces
 * Existence of referenced properties in beans
 * Existence of referenced type ciphers
 * 
 * TODO: Implement validations
 * 
 * @author Bajales Raul
 * 
 */
public class ConfigurationValidator {

    private static Log log = LogFactory.getLog(ConfigurationValidator.class);
    private CFGBeanMapping beanMapping;
    private CFGRegistry registry;
    private boolean validConfiguration;
    private String message;

    /**
     * Constructor
     */
    private ConfigurationValidator(CFGBeanMapping beanMapping, CFGRegistry registry) {
        super();
        this.beanMapping = beanMapping;
        this.registry = registry;
        this.validConfiguration = true;
        this.message = "==> Configuration Ok";
    }
    
    /**
     * @return boolean
     */
    public boolean isValidConfiguration() {
        return this.validConfiguration;
    }
    
    /**
     * Validates the configuration
     */
    public void validateConfiguration() {
        log.info("Sarting validation of configuration files...");
        // if configuration is not valid, then set this.message to desired message and this.valid to false 
    }

    /**
     * @param beanMapping
     * @throws ConfigurationValidatorException
     */
    public static void validate(CFGBeanMapping beanMapping, CFGRegistry registry) throws ConfigurationValidatorException {
        ConfigurationValidator validator = new ConfigurationValidator(beanMapping, registry);
        validator.validateConfiguration();
        if (!validator.isValidConfiguration()) throw new ConfigurationValidatorException(validator.message);
        log.info(validator.message);
    }

}
